Adjustment means for sighting telescopes



Jan. 22, 1957 E. r zuss ADJUSTMENT MEANS FOR SIGHTING TELESCOPES Filed July 6 1954 V p? D 5mm a u "V m g III]!!! I] mw .Q Q V 2 gar/ j Q7/4711 "0 z I 8 5 3 Q 2,778,] 16 Patented Jan. 22, 1957 ADJUSTMENT MEANS FOR SIGHTING TELESCOPES Eduard Reuss, Kassel, Germany, .assignor to gHertl -& Reuss, Kassel, Germany, a firm Application July 6, 1954, Serial No. 441,318

Claims priority, application Germany December 4, 19,53

8 Claims. (Cl. 3350) This invention relates to means for hairs or markings regard to a target.

In sighting telescopes it has been known to employ means in the form of cross-hairs which may be displaced for the purpose of altering the elevationof-sight or :for serving to obtain a fixed point of setting or calibration for aiming purposes. In the first case, the cross-hair means or device is displaced in upward or downward direction. In the second case, the cross-hair device must bedisplaced from one side to the other.

Devices have been heretofore known which .are equipped with special knobs for carrying out movements of adjustments or by which elevation adjustment of ithe sighting device .is mechanically coupled .to sforcedly perform movements with theoptical adjustment :of :the :teleadjusting thecrossof sighting telescopes or any sight in scope.

It is an object of the adjusting the cross-hairs of sighting telescopes.

Still another object of the present invention is to prosembled, if necessary, only a minimum number of manipulations being necessary in order to bring about rapid operation of adjustment.

Another object is to The foregoing and other objects of the invention not specifically set forth and the manner and means by which they are realized will be better understood from the detailed description which follows when considered in connection with the accompanying drawing.

In the drawing:

Fig. 1 is a fragmentary sectional vertical view through a sighting device made in accordance with the invention.

Fig. 2 is a plan view on the cam disk as seen from below whereby parts positioned below the cam disk have been omitted for the sake of clarity.

In Fig. 1, the cross-hair device 1 is formed as sighting means in a sighting telescope. This cross-hair device is held within a hollow block member 2 which surrounds the guide for the light of the telescope (not shown).

and are employable for .accurately Member 2 may be moved in a vertical direction to the longitudinal For that reashown).

In order to also move or displace the cross-hair device :1 in horizontal direction the second block memberfi is .alsoprovided with a dovetail-shaped .end 4 which is slidable in a correspondingly shaped horizontal groove of a any appropriate manner, for instance, by any fastening .means or screws with ahousing 5a of the telescope.

gether with pin or follower .6 in a vertical direction with respect to the longitudinal axis of the instrument. Consequently pin or follower 6 will always be invcontact with the end face 7 of the cam 8.

Block member 3 carries a adjust the lateral movement of the cross-hair device whereby pin 1,0 coacts with a lateral cam surface 11.0f cam disk 12 (Fig. 2). Resilient or spring means 13 fixed to block 5 at 13a urges pin It) .always in contact with the curved side face 11 of cam disk 12.

Cam disk 8 which serves to facilitate the sight or elevation adjustment is ,rotatably journaled in a fixed carrier plate 14 .positioned on plate 14 projects for guiding purposes and for retaining Plate 14,.may, for or pieces, so that the annulargroove or bearing for cam the telescope instrument 5a in any suitablemanner, such as by screws (not shown). ment or extension 15 which is positioned andincontact rotation thereof. Cam disk 8 as well as its enlargement rim 15 are provided with a bore 80. Cam disk 12 has an extension or stub shaft 16 which runs in a bearing 19a, forming part of an intermediary disk-shaped element 19 which is screwed into carrier plate 14 by means of outer screw threads 1%. Stub shaft 16 is connected with a stepped-up extension 17a which is positioned within bore 80.

This extension 17a has further a circular-shaped plate 17 provided with top plate 17 forming a single piece with extension 17a and stub shaft ment by means of rotating rim extension 15, as may be well understood.

In Fig. 2, the carrier plate 14 is shown together with other parts in plan view and as seen from below plate 14. All parts of the device therebelow have been omitted, such as, for instance, the housing 5a of the sighting telescope. Thus pins 6 and it) are shown in cross-section and disk 12 is exposed to view together with its spiralshaped peripheral curve 11 along which slides cylindrical pin 10.

In Fig. 2 is further shown the intermediary disk element 19 which is positioned at a level above cam disk 12, which intermediary disk 19 has a cut-out at 18. Through this cut-out is visible the end surface 7 of cam disk 8 coacting with pin or follower 6 which, in this particular instance, is rectangular in cross-section.

The operation of the device will be readily gathered from the aforesaid disclosure and the objects of the invention are readily realized from the structural features herein shown and referred to.

It can thus be seen that there has been provided in accordance with the invention adjustment means for the cross-hairs in a sighting telescope, which is characterized by two coaxially positioned disk means forming knobs or manipulating means, of which one is adapted for elevation adjustment and the other for lateral adjustment of said cross-hairs, a peripheral cam-shaped surface on one of said disk means, an end cam-shaped surface on the other of said disk means, respective follower means cooperable with said cam-shaped surfaces, respective displaceable carrier means for said follower means disposed within said telescope, and resilient means for biasing said carrier means with said follower means against said camshaped surfaces, to thereby maintain contact of said follower means With said cam-shaped surfaces, respectively.

Various changes and modifications may be made without departing from the spirit and scope of the present invention and it is intended that such obvious changes and modifications be embraced by the annexed claims.

Having thus described the invention, and what is claimed as new and desired to be secured by Letters Patent, is:

1. Adjustment means for the crosshairs in a sighting telescope comprising two coaxially positioned disk means of which one is adapted for elevation adjustment and the other for lateral adjustment of said cross-hairs, a peripheral cam-shaped surface on one of said disk means, an end cam-shaped surface on the other of said disk means, respective follower means cooperable with said thereby maintain contact of said follower means with said cam-shaped surfaces, respectivel 2. Adjustment means according to claim 1, including manipulating means, respectively, forming parts of said disk means and terminating in end faces substantially flush with each other.

3. Adjustment means for the sighting means of a telescope having a housing comprising two coaxially and concentrically positioned rotatable members one encased within the other and, respectively, adapted for elevation adjustment and for lateral adjustment of said sighting means, a first cam-shaped face disposed on the end of one of said members, a second cam-shaped face disposed on the periphery of the other of said members, respective follower means cooperable with said cam-shaped faces and supported in said telescope housing, means biasing said follower means against said cam-shaped faces, to thereby maintain contact of said follower means with the latter, respectively, and means facilitating manipulation of said members and integral with the latter and terminating in end faces substantially parallel with the longitudinal axis of said housing and substantially level with each other.

4. Adjustment means according to claim 3, said manipulating means being concentrically disposed to each other on said telescope housing.

5. Adjustment means according to claim 3, including carrier means, respectively positioned within said telescope housing and supporting said sighting means, said follower means and said biasing means, respectively, said carrier means extending substantially in the direction of the longitudinal axis of said telescope housing.

6. Adjustment means according to claim 3, including means for guiding one of said rotatable members relative to the other of said rotatable members, said guiding means being stationary and aflixed to said telescope housing.

7. Adjustment means according to claim 6, wherein one of said members is provided with a guide groove, said guide means projecting into said guide groove of said one member.

8. Adjustment means according to claim 6, said guiding means being provided with thread means, and bearing means for the other of said members and threadedly engaging the threads of said guiding member, thus spacing said other member from said guiding means, which engages said one member.

cam-shaped surfaces, respective displaceable carrier means for said follower means disposed within said telescope, and resilient means for biasing said carrier means with said follower means against said cam-shaped surfaces, to

References Cited in the file of this patent UNITED STATES PATENTS 

